I think that Anthropic is fully absolutely unethical. And they lied a lot. They were actively trying to make the doom happen while trying to cash out maximally on doom trolling.
If they were actually concerned over social impact, they would try to minimize it. They could have sell their product as a tool to be used to make economy boom, they tried to sell it on promiss to make it shrink for most people.
It really does not matter how much they believed own doom predictions, because they were actively trying to make them true whether realistic or not.